December weather forecastHagi, Japan

December

Weather in December

December, the first month of the winter in Hagi, is still a chilly month, with an average temperature varying between 5.4°C (41.7°F) and 9.6°C (49.3°F).

Temperature

During the transition into December, Hagi observes a decrease in the average high-temperature, falling from a mild 15.3°C (59.5°F) in November to a chilly 9.6°C (49.3°F). Hagi reports an average low temperature of 5.4°C (41.7°F) in December, a minor decrease from the day's highs.

Humidity

In Hagi, the average relative humidity in December is 75%.

Rainfall

In Hagi, in December, it is raining for 16.9 days, with typically 51mm (2.01") of accumulated precipitation. Throughout the year, in Hagi, Japan, there are 160.1 rainfall days, and 806mm (31.73") of precipitation is accumulated.

Snowfall

Months with snowfall in Hagi are January through March, November and December. In December, it is snowing for 3.7 days. Throughout December, 15mm (0.59") of snow is accumulated. In Hagi, during the entire year, snow falls for 13.5 days and aggregates up to 57mm (2.24") of snow.

Sea temperature

In December, the average sea temperature is 18°C (64.4°F).
Note: For most, swimming in 18°C (64.4°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 07:02 and sunset at 17:04. On the last day of the month, sunrise is at 07:20 and sunset at 17:14 JST.

Sunshine

In December, the average sunshine is 4.4h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Hagi, 9.6°C (49.3°F) is the average high-temperature and 5.4°C (41.7°F) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 36°C (96.8°F).

In Hagi, the average relative humidity in December is 75%.

In Hagi, in December, during 16.9 rainfall days, 51mm (2.01") of precipitation is typically accumulated.

In Hagi, Japan, in December, snow falls for 3.7 days, with typically accumulated 15mm (0.59") of snow.

In Hagi, in December, the average water temperature is 18°C (64.4°F). Swimming in 18°C (64.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

The month with the shortest days in Hagi, Japan, is December, with an average of 9h and 54min of daylight.

The average day length in December in Hagi is 9h and 54min.

On the first day of December in Hagi, sunrise is at 07:02 and sunset at 17:04. On the last day of the month, sunrise is at 07:20 and sunset at 17:14 JST.

In December, the average sunshine duration is 4.4h.

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Hagi, Japan.

In Hagi, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

15.3°C

9.6°C

7.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.2km/h

16.1km/h

15.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

3.7

5.5

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

15.6

9.5

11.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Hagi, Japan

Average high temperature in December: 9.6°C

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (7.5°C).

Average low temperature in December: 5.4°C

The month with the highest average low temperature is August (23.6°C).
The coldest month (with the lowest average low temperature) is January (3.2°C).

Average pressure in December
Hagi, Japan

Average pressure in December: 1021.1mbar

The month with the highest atmospheric pressure is January (1021.5mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).

Average wind speed in December
Hagi, Japan

Average wind speed in December: 14.9km/h

The windiest month (with the highest average wind speed) is December (14.9km/h).
The calmest month (with the lowest average wind speed) is June (8.7km/h).

Average humidity in December
Hagi, Japan

Average humidity in December: 75%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (72%).

Average rainfall in December
Hagi, Japan

Average rainfall in December: 51mm

The wettest month (with the highest rainfall) is July (150mm).
The driest month (with the least rainfall) is November (35mm).

Average rainfall days in December
Hagi, Japan

Average rainfall days in December: 16.9 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is May (10.3 days).

Average snowfall in December
Hagi, Japan

Average snowfall in December: 15mm

The month with the highest snowfall is January (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Hagi, Japan

Average snowfall days in December: 3.7 days

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in December
Hagi, Japan

Average sea temperature in December: 18°C

The best month for swimming (with the highest average sea temperature) is August (27°C).
The coldest months (with the lowest average sea temperature) are February and March (15°C).

Average daylight in December /
Average sunshine in December
Hagi, Japan

Average daylight in December: 9h and 54min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

Average sunshine in December: 4h and 24min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).